\documentclass{ctexbeamer}
\usetheme[min,infolines]{sjtubeamer}
\begin{document}
\begin{frame}
  \frametitle{图}
  \begin{figure}
    \centering
    \begin{stampbox}
      \includegraphics
      [height=.3\textheight]
      {plant.jpg}
    \end{stampbox}
    \caption{图片标题}
  \end{figure}
\end{frame}
\end{document}